Master performance attribution for the ISE exam. Learn allocation vs. selection effects, benchmark construction, and institutional reporting standards.
Performance Attribution for ISE
Understanding how to analyze and attribute portfolio performance is essential for institutional investment professionals.
Types of Attribution
Return-Based Attribution
- Uses only returns data
- Simpler, less data required
- Good for multi-manager portfolios
Holdings-Based Attribution
- Uses actual portfolio holdings
- More precise analysis
- Requires complete position data
Attribution Effects
Allocation Effect
- Impact of asset class/sector weights
- Compares portfolio weights to benchmark
- Measures timing and allocation decisions
Selection Effect
- Impact of security selection within sectors
- Returns vs. benchmark within each sector
- Measures stock picking ability
Interaction Effect
- Combined impact of allocation and selection
- Can be positive or negative
- Often small relative to other effects
Performance Measurement
Time-Weighted Return (TWR)
- Removes impact of cash flows
- Standard for comparing managers
- Required by GIPS standards
Money-Weighted Return (MWR)
- Includes impact of cash flows
- Client's actual experience
- IRR calculation
Benchmark Construction
- Should be investable
- Appropriate for strategy
- Specified in advance
- Measurable and unambiguous
Institutional Reporting
- GIPS compliance
- Composite construction
- Required disclosures
- Verification requirements
Key Exam Topics
- Attribution calculations
- TWR vs. MWR differences
- Benchmark selection criteria
- Interpreting attribution results
- GIPS standards basics
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